CVE-2020-28349

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

An inaccurate frame deduplication process in ChirpStack Network Server 3.9.0 allows a malicious gateway to perform uplink Denial of Service via malformed frequency attributes in CollectAndCallOnceCollect in internal/uplink/collect.go. NOTE: the vendor's position is that there are no "guarantees that allowing untrusted LoRa gateways to the network should still result in a secure network.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/brocaar/chirpstack-network-server/commit/874fc1a9b01045ebe8a340f0bb01ed19e8256e60Patch, Third Party Advisory
https://github.com/brocaar/chirpstack-network-server/commit/f996bb0c6c85281b5658f59ff09db1b4a73db453Patch, Third Party Advisory
https://www.cyberark.com/resources/threat-research-blog/lorawan-mqtt-what-to-know-when-securing-your-iot-networkExploit, Third Party Advisory
https://github.com/brocaar/chirpstack-network-server/commit/874fc1a9b01045ebe8a340f0bb01ed19e8256e60Patch, Third Party Advisory
https://github.com/brocaar/chirpstack-network-server/commit/f996bb0c6c85281b5658f59ff09db1b4a73db453Patch, Third Party Advisory
https://www.cyberark.com/resources/threat-research-blog/lorawan-mqtt-what-to-know-when-securing-your-iot-networkExploit, Third Party Advisory

Timeline

Published: Nov 9, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-28358.2Vulnerability in the Oracle Marketing product of Oracle E-Business Suite (component: Marketing Administration). Supported versions that are CVE-2020-283506.1A Cross Site Scripting (XSS) vulnerability exists in OPAC in Sokrates SOWA SowaSQL through 5.6.1 via the sowacgi.php typ parameter.CVE-2020-283516.1The conferencing component on Mitel ShoreTel 19.46.1802.0 devices could allow an unauthenticated attacker to conduct a reflected cross-site CVE-2020-28368.2Vulnerability in the Oracle Marketing product of Oracle E-Business Suite (component: Marketing Administration). Supported versions that are CVE-2020-283609.8Insufficient RegEx in private-ip npm package v1.0.5 and below insufficiently filters reserved IP ranges resulting in indeterminate SSRF. An CVE-2020-283615.4Kamailio before 5.4.0, as used in Sip Express Router (SER) in Sippy Softswitch 4.5 through 5.2 and other products, allows a bypass of a head CVE-2020-283627.5Go before 1.14.12 and 1.15.x before 1.15.4 allows Denial of Service.CVE-2020-283646.1A stored cross-site scripting (XSS) vulnerability affects the Web UI in Locust before 1.3.2, if the installation violates the usage expectat CVE-2020-283656.1Sentrifugo 3.2 allows Stored Cross-Site Scripting (XSS) vulnerability by inserting a payload within the X-Forwarded-For HTTP header during t CVE-2020-283667.5Code injection in the go command with cgo before Go 1.14.12 and Go 1.15.5 allows arbitrary code execution at build time via a malicious unqu CVE-2020-283677.5Code injection in the go command with cgo before Go 1.14.12 and Go 1.15.5 allows arbitrary code execution at build time via malicious gcc fl CVE-2020-283684.4Xen through 4.14.x allows guest OS administrators to obtain sensitive information (such as AES keys from outside the guest) via a side-chann